In general, Xikar is good stuff. However, these are 70%, and most BOTL prefer ~65% but to each there own. Also, you need to recharge this with PG.
I would recommend some Hearfelt beads (you can get tubes & other containers like this you have a pic of) but it works just as well in a tray, coffin, etc. Also, you have many fans of kitty litter here too; beads & KL recharge with distilled water.